ADuM1201 Dual Channel Digital Isolator Module — I2C / UART

ADuM1201 Dual Channel Digital Isolator Module — I2C / UART

The ADuM1201 digital isolator module provides galvanic isolation between two digital circuits using the Analog Devices ADuM1201 iCoupler chip. Isolates two digital signal channels with 2500V RMS isolation at up to 1Mbps — protecting Arduino from high-voltage circuits, ground loops, and electrical noise in industrial and medical applications.

Key Specifications

• IC: ADuM1201 | Channels: 2 (configurable direction)
• Isolation voltage: 2500V RMS
• Data rate: up to 1Mbps
• Supply voltage: 3.3–5V (both sides independent)
• Propagation delay: ~40ns
• Compliance: RoHS compliant

Why Choose This?

• ✅ 2500V isolation — protect Arduino from high-voltage circuits
• ✅ Eliminates ground loops — clean signal transmission between isolated domains
• ✅ Independent power supplies — each side powered separately
• ✅ I2C / UART / SPI compatible — isolate any digital communication bus

Typical Applications

• Arduino to industrial equipment galvanic isolation
• I2C and UART bus isolation for noise immunity
• Medical device signal isolation
• High-voltage motor drive signal isolation